package com.zhao.domain;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

@Data
@NoArgsConstructor
public class LoginUser implements UserDetails {

    private User user;
    private List<String> permissions;

    public LoginUser(User user, List<String> permissions) {
        this.user = user;
        this.permissions = permissions;
    }


    //存储SpringSecurity所需要的权限信息的集合
    @JSONField(serialize = false) //避免在redis中序列化
    private List<GrantedAuthority> authorities;
    @Override
    //返回权限信息
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if (authorities!=null){
            return authorities;
        }
        //把permissions中字符串类型的权限信息转换成GrantedAuthority对象存入authorities中
        authorities = new ArrayList<>();
        for (String permission : permissions) {
            SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permission);
            authorities.add(authority);
        }
        return authorities;
        /*authorities = permissions.stream().
                map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;*/
    }

    @Override
    /**
     * 获取密码
     * */
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    /**
     * 获取用户名
     * */
    public String getUsername() {
        return user.getUserName();
    }

    @Override
    /**
     * 判断是否没过期
     * */
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    /**
     *
     * */
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    /**
     * 是否没有超时
     * */
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    /**
     * 是否可用
     * */
    public boolean isEnabled() {
        return true;
    }
}
